CN101247372A - Communication system, gateway device and adapter device - Google Patents
Communication system, gateway device and adapter device Download PDFInfo
- Publication number
- CN101247372A CN101247372A CNA2008100048310A CN200810004831A CN101247372A CN 101247372 A CN101247372 A CN 101247372A CN A2008100048310 A CNA2008100048310 A CN A2008100048310A CN 200810004831 A CN200810004831 A CN 200810004831A CN 101247372 A CN101247372 A CN 101247372A
- Authority
- CN
- China
- Prior art keywords
- network
- base station
- unit
- gateway device
- terminating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims abstract description 52
- 239000013307 optical fiber Substances 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims 3
- 230000005693 optoelectronics Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0066—Details of access arrangements to the networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/02—Inter-networking arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1023—Media gateways
- H04L65/103—Media gateways in the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1033—Signalling gateways
- H04L65/104—Signalling gateways in the network
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Optical Communication System (AREA)
Abstract
A gateway device which mutually converts communication protocols among a subscriber network including a base station wirelessly housing a mobile terminal and an Internet Protocol processor to bring an interface from the base station into an Internet Protocol process, a public switched telephone network and a packet communication network, includes a synchronized network terminating unit which terminates the public switched telephone network to generate the in-device signal, a packet network terminating unit which terminates the packet communication network to generate the in-device signal, a subscriber network terminating unit which houses the base station via the interface to which the Internet Protocol process is applied and terminates the subscriber network to generate the in-device signal, and an exchange unit which exchanges in-device signals each generated from the synchronized network terminating unit, the packet network terminating unit and the subscriber network terminating unit.
Description
Technical field
The present invention relates between for example public switch telephone network and Internet Protocol (IP) net, carry out interconnective gateway device, and the communication system of being furnished with this device.
Background technology
Along with the liberalization of information communication growth of requirement and Communication Development, comprise the telematic services variation of voice communications versus data communications.Under such background, the quantity that newly enters the operator in communication service field increases, and the service competition between the operator is very fierce.New operator is called as new public operators (NCC), and for example utilizing, internet protocol voice technology such as (VoIP) provides various services.VoIP is by with packing data, integrated speech grid and data system network, the technology of coming the transmission of digital speech data.
NCC usually rents this facility of switch with predetermined payout from the particular operator that has subscriber's line.Most of NCC utilizes their their network of fund structure, for example IP network.Except these networks, the public switch telephone network (PSTN) by adding particular operator has just formed communication system.In order to provide service, use these facilities in cross-cutting mode to the user.
For PSTN and this different communication network of IP network are connected to each other, used gateway device.This device comprises the IP converting unit that speech data and binary data is converted to the IP packet, and the packet switch unit of exchange IP packet.All these unit all serve as the network interface of IP network.
In this gateway device some are worked with the base station of mobile telephone system.Mobile telephone system comprises so-called cell phone system and at the so-called personal handyphone system of Japan (PHS).Hereinafter this radio communications system is commonly referred to as mobile communication system.
Summary of the invention
Current have a problem, that is, and and the bandwidth deficiency of transmission line between gateway device and the base station or network.If we turn a deaf ear to this problem,, therefore need take all necessary measure because this problem has become the bottleneck that satisfies the communication requirement that further increases in the future.A kind of method that addresses this problem is disclosed in Japan patent applicant announce 2002-290480 number; But disclosed this method is not considered communication between portable terminal and the PSTN in this patent documentation.
An object of the present invention is to provide a kind of communication system, gateway device and adapter apparatus, be used for bandwidth is expanded to the communication capacity that is enough to satisfy between base station and the gateway.
On the one hand, the invention provides a kind of communication system, comprising: by the user network that the base station constitutes, base station and portable terminal radio communication wherein; Public switch telephone network; Packet communication network; Gateway device, mutual converts communications agreement between described user network, public switch telephone network and packet communication network is so that interconnect these networks; And Internet Protocol processing unit, be installed on the user network, interface between described gateway device and the described base station is carried out Internet Protocol handle, wherein said gateway device comprises: synchronizing network terminating unit, and the described public switch telephone network of terminating is with signal in the generating apparatus; Synchronizing network terminating unit, the described packet communication network of terminating is with signal in the generating apparatus; User network terminating unit, by interface and the described base station communication that is processed into Internet Protocol, and the described user network of terminating is with signal in the generating apparatus; And crosspoint, exchange is signal from described synchronizing network terminating unit, in each device of producing of packet network terminating unit and user network terminating unit.
By taking such measure, base station and gateway device are processed into IP.Thereby with hold the base station by existing digital synchronization network (being) compare in PHS, extending bandwidth significantly by I ' interface.Therefore, can improve communication speed and increase channel quantity significantly.
Other advantage of the present invention will illustrate in the description of back that these advantages can partly be understood, and also can understand by putting into practice the present invention from describe.Can realize and obtain advantage of the present invention by means and the combination that hereinafter particularly points out.
Description of drawings
The accompanying drawing of incorporating specification into and constituting a specification part is used to illustrate embodiments of the invention, and describes and the detailed description to embodiment given below with the generality that provides above, is used for illustrating principle of the present invention.
Fig. 1 is the system schematic of the unified embodiment of communication system among explanation the present invention;
Fig. 2 is the schematic diagram of explanation optical storage unit 1 and data flow details;
Fig. 3 A and 3B are the functional block diagram of an explanation adapter 30A shown in Figure 1 and an embodiment of 30B; And
Fig. 4 is the functional block diagram of 50 1 embodiment of explanation built-in adapter shown in Figure 1.
Embodiment
Fig. 1 is the system schematic of the unified embodiment of communication system among the present invention.System shown in Figure 1 comprises public switch telephone network 100; IP network 200 as packet communication network; And user network 300.These networks are connected to gateway 10.Network 100 for example links to each other with gateway 10 by I ' interface.IP network 200 links to each other with gateway 10 by the IP interface.
Gateway 10 is mutual converts communications agreement between user network 300, public switch telephone network 100 and IP network 200, and these networks are connected with each other.In gateway 10 inside, utilize time division switch to connect according to synchronous exchange, exchange the data on each network each other.
Between adapter 30A and 30B and gateway 10, and between base station 2n and gateway 10, all be connected to gateway 10 by existing fiber optic network 400.500 couples of optical fiber F that extend from corresponding base station 21~2n carry out line convergence and are connected to gateway 10 by the line convergence unit.
Fiber optic network 400 is for adopting the IP network as EPON (PON) technology.Function by base station self or adapter 30 is processed into IP with the Network-Node Interface between each base station 21~2n and the fiber optic network 400.Base station 21 has two output interfaces.One of two interfaces are for being connected to the I ' interface of gateway 10.
In addition, gateway 10 is equipped with UFIU UMSC Fiber Interface Unit 13, packet converting unit 14 and main control unit 15.UFIU UMSC Fiber Interface Unit 13 holds base station 21~2n by the optical fiber F that is carried out line convergence by line convergence unit 500.That is to say that UFIU UMSC Fiber Interface Unit 13 is with the light signal of optics and electric means conversion from fiber optic network 400, and terminating IP packet is to generate the PCM data.
In gateway 10 inside, by PCM high-speed channel (PCM-HWY) transmission PCM data.By Local Area Network or data LAN transmission of IP data bag.
UFIU UMSC Fiber Interface Unit 13 comprises optical switch 13a, optical interface 13b, the 2nd layer data switch (L2SW) 13c and packet converting unit 13d.Optical switch 13a switches the route from the optical fiber F of fiber optic network 400.Communication system can be switched thus, with operation base station 21~2n, and can improve fault freedom immediately.
To convert the signal of telecommunication to by the light signal of optical switch 13a introducing device inside by the photo-electric conversion element (not shown) that provides for optical interface 13b.Optical interface 13b is from signal of telecommunication regeneration IP packet.By L2SW 13c is that these IP packets are selected route, to send to IP interface 12 or packet converting unit 13d.Packet converting unit 13d changes mutually to packet, the packet of the data of flowing through LAN and the time divided data of the PCM-HWY that flows through of the control LAN that flows through.
Fig. 2 illustrates the details of UFIU UMSC Fiber Interface Unit 13 and data flow.UFIU UMSC Fiber Interface Unit 13 has clock signal processing unit 20.Clock signal processing unit 20 adds timing information for the PCM data of wanting packaged.This system can send PCM data and synchronization timing data thus in same channel, and can make response to the base station that only has digital synchronization interface.
In light accomodating unit 13 shown in Figure 2, comprise that the route that the transmission data of voice or binary code are followed is optical interface 13b, L2SW 13c, packet converting unit 14, main control unit 15, with this sequential delivery.The data of being transmitted are sent to the IP interface by the time switch 15a of main control unit 15 exchange again by 14 groupings of packet converting unit, and by IP interface 12.
Because base station 21 has IP interface and digital synchronization interface, so base station 21 can send through synchronous information by digital synchronization network.In this case, system can pass through optical interface 13b and data L2SW 13c, according to former state in the packet transmission data is sent to IP network by said sequence from the IP interface of base station by IP interface 12.As the example of digital synchronization network, be a kind of feasible approach at the widely used Integrated Service Digital Network of Japan.
Fig. 3 A and 3B are the functional block diagrams of an adapter 30A shown in Figure 1 and an embodiment of 30B.In adapter 30A, the 21 IP packets that LAN interface 32 is in data packet form that pass through that send are optimized from the base station by 35 pairs of electrooptic switching elements, and send to optical fiber F.In adapter 30B, to packing from the time divided data of base station 22 by Time Division Multiplexing interface 33.Packet is optimized by electrooptic switching element 36 by clock signal processing unit 34, sends to optical fiber F.In the upper strata, the packet from optical fiber F is carried out the clock signal transmission process, send to I ' interface.This processing is concentrated by CPU (CPU) 31 or CPU 32 and is carried out.
Fig. 4 is the functional block diagram of 50 1 embodiment of built-in adapter shown in Figure 1.Comprise that this built-in adapter 50 makes that base station 2n can handle packet and TDM signal.Packet in them, is optimized by electrooptic switching element 55 through signal processing unit 54 from lan switch 52, sends to optical fiber F.After the clock information that has added from clock signal processing unit 53, the TDM signal is optimized by electrooptic switching element 55, and is sent to optical fiber F by signal processing unit 54.This processing is central controlled by CPU 51.
According to above-mentioned configuration, one of the interface of base station and interface of gateway 10 are processed into IP.In other words, adapter 30 will be packaged into the IP packet from the TDM signal of base station.In gateway 10, the PCM packing data that will carry out circuit switched in UFIU UMSC Fiber Interface Unit 13 becomes the IP packet equally.Therefore, because user network 300 is processed into IP network, so system can expand transmission band, so make it the conventional user network of big time divided network.In addition, in this embodiment, optimize user network 300, and formed the optical transport network that wherein the PON technology is combined with fiber optic network 400.Can guarantee the upper limit speed (100Mbps or 1.25Gbps) of the channel speed of user network 300 thus up to PON.
In addition, the configuration that built-in adapter 50 can reducing adaptor self is installed in the base station, optical fiber F can also be directly connected to base station 21~2n, and can obtains advantage, for example reduce the thunder and lightning damage.
In brief, in this embodiment, this system is mounting adapter 30,50 on user network 300, will become the IP interface from I ' interface conversion of base station 21~2n, and optimizes physical layer interface.UFIU UMSC Fiber Interface Unit 13 is also installed holding the optical fiber F from adapter 30 and 50 by this system in gateway 10, and converts the IP packet to the PCM data, with process IP packet in device.Therefore, this system can also gateway 10 internal conversion be connected the data that send from user network 300.Therefore, public switch telephone network 100, IP network 200 and user network 300 can be connected with each other.So, can be provided for by expanding communication system, gateway device and the adapter apparatus that the frequency band that can be received improves communication speed.
Those skilled in the art will be easy to expect other advantage and modification.Therefore, shown in the present invention is not limited to here in aspect it is wideer and described details and representative embodiment.Therefore, can make various modification and do not break away from spirit and scope as claims and the total conception of invention that important document of equal value defined thereof.
Claims (11)
1. communication system is characterized in that comprising:
User network (300), this user network (300) has the base station, and described base station is with wireless mode and communication of mobile terminal wherein;
Public switch telephone network (100);
Packet communication network (200);
Gateway device (10), this gateway device (10) be mutual converts communications agreement between described user network, described public switch telephone network and described packet communication network, to interconnect these networks; And
(30A 30B), is installed on the described user network Internet Protocol processing unit, and the interface between described gateway device and the described base station is carried out Internet Protocol handle, wherein
Described gateway device comprises:
Synchronizing network terminating unit (11), the described public switch telephone network of this unit terminating is with signal in the generating apparatus;
Packet network terminating unit (12), the described packet communication network of this unit terminating is to generate signal in the described device;
User network terminating unit (13), this unit is connected to described base station by the interface that is processed into Internet Protocol, and the described user network of terminating is to generate signal in the described device; And
Crosspoint (15a), this elements exchange be signal from described synchronizing network terminating unit, in each device of producing of described packet network terminating unit and described user network terminating unit.
2. communication system as claimed in claim 1 is characterized in that also comprising:
Light activating apparatus (13b) is used for by optical fiber described base station and described gateway device being connected with each other, and activates described interface with optical mode.
3. communication system as claimed in claim 2 is characterized in that described light activating apparatus comprises:
Electrooptic switching element (35) is arranged in the described user network, changes the signal that sends and received by described base station from described portable terminal in the electric light mode, and described signal is sent to described optical fiber; And
Photoelectric conversion unit is installed in the described gateway device, with the light signal of photovoltaic conversion by described optical fiber input.
4. communication system as claimed in claim 2 is characterized in that described light activating apparatus is installed in the described base station.
5. communication system as claimed in claim 2 is characterized in that described user network comprises:
A plurality of described base stations (21 ..., 2n); And
Optical link converges unit (500), and each optical fiber that this unit comes extending from described a plurality of base stations carries out circuit and compiles, so that described a plurality of optical fiber are connected to described gateway.
6. communication system as claimed in claim 5 is characterized in that described gateway device comprises the light crosspoint, and described smooth crosspoint switches to operate described a plurality of base station.
7. a gateway device (10), this gateway device is mutual converts communications agreement between user network, public switch telephone network and packet communication network, described user network comprises and the base station and the Internet Protocol processing unit that is used for the interface from described base station is carried out the Internet Protocol processing of portable terminal radio communication that described gateway device is characterised in that and comprises:
Synchronizing network terminating unit (11), the described public switch telephone network of this unit terminating is with signal in the generating apparatus;
Packet network terminating unit (12), the described packet communication network of this unit terminating is to generate signal in the described device;
User network terminating unit (13), this unit is connected to described base station and the described user network of terminating to generate signal in the described device by the interface of handling through Internet Protocol; And
Crosspoint (15a), this elements exchange be signal from described synchronizing network terminating unit, in each device of producing of described packet network terminating unit and described user network terminating unit.
8. gateway device as claimed in claim 7, when described base station comprises electrooptic switching element (55), described electrooptic switching element is changed the signal that is received and arrived from described portable terminal by described base station in the electric light mode, so that described signal is sent to the optical fiber that is connected to described gateway device, it is characterized in that also comprising:
Electrooptic switching element carries out opto-electronic conversion with the light signal to input.
9. gateway device as claimed in claim 8 when described user network comprises a plurality of base station, is characterized in that also comprising:
Light crosspoint (13a), this unit switch to operate described a plurality of base station.
10. adapter apparatus (30A) that is used for communication system, comprise gateway device, described gateway device mutual converts communications agreement and interconnect these networks between user network, public switch telephone network and packet communication network, described user network comprises the base station with the portable terminal radio communication, and described adapter apparatus is characterised in that and comprises:
Internet Protocol processing unit (32) is used for that the interface between described base station and the described gateway device is carried out Internet Protocol and handles.
11. adapter apparatus as claimed in claim 10, this device is installed in the described base station.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP033859/2007 | 2007-02-14 | ||
JP2007033859A JP4364248B2 (en) | 2007-02-14 | 2007-02-14 | Communication system, gateway device and adapter device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101247372A true CN101247372A (en) | 2008-08-20 |
CN101247372B CN101247372B (en) | 2014-07-16 |
Family
ID=39186683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200810004831.0A Expired - Fee Related CN101247372B (en) | 2007-02-14 | 2008-02-04 | Communication system, gateway device and adapter device |
Country Status (4)
Country | Link |
---|---|
US (1) | US8184645B2 (en) |
JP (1) | JP4364248B2 (en) |
CN (1) | CN101247372B (en) |
GB (1) | GB2446695B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103002601A (en) * | 2011-09-19 | 2013-03-27 | 华为技术有限公司 | Radio network communication system and data transmission method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4799441B2 (en) * | 2007-02-14 | 2011-10-26 | 株式会社東芝 | Communication system, gateway device and adapter device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2099738C (en) * | 1992-09-25 | 1999-01-12 | William Keith Cline | Architecture for a wireless telecommunication system |
KR100334558B1 (en) | 2000-05-24 | 2002-05-03 | 윤종용 | Wire·wireless unified in-building communication method and system |
JP2002290480A (en) | 2001-03-26 | 2002-10-04 | Root Inc | Communication system and data communication method |
JP2003078572A (en) | 2001-09-04 | 2003-03-14 | Nec Corp | Voice gateway device |
KR100454945B1 (en) | 2001-11-28 | 2004-11-06 | 삼성전자주식회사 | Public land mobile network and private mobile network integration service network and system therefor |
JP2004222009A (en) | 2003-01-16 | 2004-08-05 | Nec Corp | Different kind network connection gateway and charging system for communication between different kinds of networks |
CN100505588C (en) * | 2003-07-26 | 2009-06-24 | 华为技术有限公司 | An optical fibre transmission system and implementing method of optical fibre transmission thereof and terminal processing device |
KR100770931B1 (en) * | 2004-11-09 | 2007-10-26 | 삼성전자주식회사 | Network interworking system and method for providing seamless voice service and short message service betweem wireless communication system |
KR100785296B1 (en) * | 2005-07-21 | 2007-12-12 | 삼성전자주식회사 | Apparatus and Method for Managing Data Transfer in VoIP Gateway |
DE202005021930U1 (en) | 2005-08-01 | 2011-08-08 | Corning Cable Systems Llc | Fiber optic decoupling cables and pre-connected assemblies with toning parts |
US20070280213A1 (en) * | 2006-05-31 | 2007-12-06 | Texas Instruments Inc. | Location verification for VOIP service provider |
US20080013957A1 (en) * | 2006-07-14 | 2008-01-17 | Tenvera, Inc. | Service Aggregation Gateway |
US7813357B2 (en) * | 2006-12-30 | 2010-10-12 | Arcsoft (Shanghai) Technology Company, Ltd. | Regional service by phone |
-
2007
- 2007-02-14 JP JP2007033859A patent/JP4364248B2/en not_active Expired - Fee Related
-
2008
- 2008-01-28 US US12/020,624 patent/US8184645B2/en not_active Expired - Fee Related
- 2008-01-31 GB GB0801822A patent/GB2446695B/en not_active Expired - Fee Related
- 2008-02-04 CN CN200810004831.0A patent/CN101247372B/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103002601A (en) * | 2011-09-19 | 2013-03-27 | 华为技术有限公司 | Radio network communication system and data transmission method thereof |
CN103002601B (en) * | 2011-09-19 | 2016-03-30 | 华为技术有限公司 | Wireless network communications system and data transmission method thereof |
Also Published As
Publication number | Publication date |
---|---|
JP4364248B2 (en) | 2009-11-11 |
US20080192919A1 (en) | 2008-08-14 |
GB2446695B (en) | 2009-06-03 |
GB0801822D0 (en) | 2008-03-05 |
GB2446695A (en) | 2008-08-20 |
CN101247372B (en) | 2014-07-16 |
JP2008199393A (en) | 2008-08-28 |
US8184645B2 (en) | 2012-05-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100954136B1 (en) | Radio system having distributed real-time processing | |
CN102215149A (en) | Communication method and communication system | |
CN101188502A (en) | Ethernet passive optical network transfer unit with telecom E1 interface | |
JP2011244096A (en) | Base station apparatus and communication method | |
US8077705B2 (en) | System and method for providing end to end quality of service for cellular voice traffic over a data network | |
CN101247372B (en) | Communication system, gateway device and adapter device | |
US11265795B2 (en) | Small cell backhaul | |
CN101184040B (en) | Router and method of implementing circuit simulation applying the router | |
KR101142458B1 (en) | mobile communication network system | |
Ward et al. | Inside the cloud-network communications basics for the relay engineer | |
JP4799441B2 (en) | Communication system, gateway device and adapter device | |
KR100542703B1 (en) | Swiching system and method capable of supporting convergence service through interworking various network | |
Raghunandan | Backhaul Network | |
KR100483547B1 (en) | Apparatus for coupling Asynchrous system and Remote system | |
JP2008199394A (en) | Communication system and gateway device | |
CN201260220Y (en) | Remote data interchanging equipment | |
KR100684943B1 (en) | System and method for providing a centralized wireless office network | |
CN201345677Y (en) | Telephone | |
JP2020205509A (en) | Optical line termination device and control method thereof | |
CN101541107A (en) | Base station system and data transmission method | |
JP2008205746A (en) | Communicating system, gateway device, and remote device | |
WO2005027424A1 (en) | System and method for providing a centralized wireless office network | |
KR20010025453A (en) | Simple wireless private branch exchange for transferring voice signal on voice network | |
SE0100708D0 (en) | A method and system for transferring data packets in communications networks |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20170204 |
|
CF01 | Termination of patent right due to non-payment of annual fee |